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  2. 地质与地球物理研究所
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  4. 中国科学院油气资源研究重点实验室
Model analysis combining gravity and seismic data with the response of inhomogeneous mantle

文献类型：期刊论文

作者Liu Kang1,2,3; Hao TianYao1,2,3; Yang Hui4; Wen BaiHong4; He EnYuan5
刊名CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
出版日期2018-10-01
卷号61期号:10页码:3903-3916
关键词Integrated geophysics Inhomogeneous mantle 2. 5D model analysis Gravity anomaly separation Seismic data Sichuan basin
ISSN号0001-5733
DOI10.6038/cjg2018L0664
英文摘要This paper proposes a new strategy for conducting model analysis with gravity anomaly and seismic data, in which the gravity response of inhomogeneous mantle should be taken into account. Model calculations and a case study in the Sichuan basin demonstrate this strategy a good potential to make the gravity data processing and inversion more consistent with the actual geological conditions. By collecting the comprehensive geophysical research results in many regions around the world, as well as the corresponding deep mantle structure, we find the lateral inhomogeneity of the mantle is widely distributed in the petroliferous basins, continental margins, ocean-continent transitions and other geological sites of general interest. However, in many joint studies based on gravity and seismic data, model analysis is usually performed within the crust. Although it simplifies the difficulty of the model analysis, the gravity anomaly caused by deep earth inhomogeneity should have been considered, otherwise the inverted density structure and interpretations may deviate the actual geological conditions. Therefore, based on the 2D forward modeling, this paper evaluates the quantitative effect of inhomogeneous mantle on Bouguer anomaly. Moreover, in a case study of the Sichuan basin, the results of the 2. 5D joint simulation taking into account the inhomogeneous mantle are obviously better than those of following the homogeneous mantle hypothesis.
WOS关键词SOUTH CHINA SEA ; WAVE VELOCITY STRUCTURE ; DEEP-CRUSTAL STRUCTURE ; TECTONIC IMPLICATIONS ; ANOMALY SEPARATION ; SICHUAN BASIN ; GEOLOGICAL IMPLICATIONS ; CONTINENTAL-MARGIN ; DENSITY STRUCTURE ; ADJACENT AREAS
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000447958300002
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/89202]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Hao TianYao
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
5.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Liu Kang,Hao TianYao,Yang Hui,et al. Model analysis combining gravity and seismic data with the response of inhomogeneous mantle[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(10):3903-3916.
APA Liu Kang,Hao TianYao,Yang Hui,Wen BaiHong,&He EnYuan.(2018).Model analysis combining gravity and seismic data with the response of inhomogeneous mantle.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(10),3903-3916.
MLA Liu Kang,et al."Model analysis combining gravity and seismic data with the response of inhomogeneous mantle".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.10(2018):3903-3916.

入库方式： OAI收割

来源：地质与地球物理研究所

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